Construction Project
Road expansion project Erlangen-Bruck/Eltersdorf - Slide-in railway bridge across BAB A3 |
Location
- Erlangen-Bruck/Eltersdorf
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Client
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Planning
- GMG lngenieurgesellschaft Dresden - Prof. Dr.-lng. Karsten Geißler
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Investment volume
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Construction time
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Contracted services BMG
- § 55.8 HOAI-Bauoberleitung (Site Management)
- Construction management
- Contract management
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Completed constructions
- Double-tracked steel arch bridge as railway overpass (L = 74.80 m)
- Excavations and construction work parallel to railway embankment
- Construction of substructures
- Construction of a reinforced steel frame to provide the base for a dirt road
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Construction method
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Special features
- Phases of the slide-in process
- Establishment of starting position and locating (SPMT) underneath the bridge
- Bridge movement approx. 30.00 m from place of assembly to final location
- Transfer of bridge and installation of stranded wire cables for the sliding procedure
- Pulling the bridge
- by 21.00 m (southern end cross beam positioned above northern abutment)
- by 29.00 m (southern end cross beam positioned above northern temporary tower)
- by 24.00 m (southern end cross beam positioned above temporary tower centre)
- by 24.00 m (the superstructure is positioned elevated above the final position)
- Removal of intermediate supports
- De-pilling of superstructure at end position
- Duration of shift (t = 7 d)
- Shift speed (v = 10.00-15.00 m/h)
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Utilization
- Intercity railway bridge (design speed (VE= 300 km/h)
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Construction
- Steel arch bridge as slide-in design
- Arches delivered in 3 segments and 16 flat steel hangers
- Flat steel panels delivered in 9 segments in 3 segments
- Welding of all segments at construction site
- Width between outside arches (W = 10.60 m)
- Height of stiffening girder (H = 2.90 m)
- Construction height of arches at top (S = 0.70 m)
- Total weight of steel construction (G = 650 t)
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